GodOfWar_3ever on 03 June 2010
I have to show that,
- cos 12 * cos 24 * cos 48 * cos 84 = 1/16
- sin 36 * sin 72 * sin 108 * sin 144 = 5/16
- sin 20 * sin 40 * sin 60 * sin 80 = 3/16
I can only do the first one....
